Sand treating apparatus



Filed Nov. 15, 1928 5 SheetsSheet l By flzwaai iu SAND TREATINGAPPARATUS Filed Nov; 15, 1928 5 Sheets-Sheet 2 V I; Inventor fig g awn/6WHO; m

z By

Attornqy Jan. 19, 1932;

o. w. HOSKING SAND TREATING APPARATUS Filed Nov. 15, 1 928 5Sheets-Sheet 3 u ZO lllllllllllll ;lll ll"" illllllllll Inventor fla/ilemake)? Attorney Jan. 19, 1932. o, w. os m 1,841,444

SAND TR BAT I NG APPARATUS Filed Nov. 15, 1928 5 Sheets-Sheet 4 InventorOak/6y W 1%.s'z by Amrnqy Jan. 19,1932. w, HOsKlNG 1,841,444

SAND TREATING APPARATUS Filed Nov. 15, 1928 5 Sheets-Sheet 5 Inventargalley Wjyoslz'z Attarnqy sand; I

Patented Jan. 19, 1932 loaxnnxwrnosxm or mongeonfnnwiohkwsnnnrnminenrrnnie'ms I Application,liledilIovemb'er 15, 1928. SeriaLNo;3 19,5513.

This invention relates tofnewan'cl useful improvements in sand treatingplants and has particular reference to an apparatus Where-by silt loam,fines or otherundesirable' substances maybe definitely separated from amass embodying a reasonable percentage of usable sands; Also theapparatus can be readily 'adj-usted'to produce a steady flovvoif anydesired.-grade (as regards" size) of sand 1' to meetfthe most exactingspecifications in practice. Furthermore, theapparatus' in-y wordsflthedischargefrom'the' separation and gradingfunit' isconstant .(or nearlyso) a cludes a rinsingfiand deWaterin-g dev-ice throughpvvhich the sandpasses following the primary separation and grading stages;

It is my theory that in order Ito cleanse sand properly, the massshouldfirstbe thor; oughly bro'ken'up and passed through a Wash box orboxes Where the sep aration'of silt, fines or other undesirablesubstancestakesplace.

Also, it is my opinion that the a'gi-tation of theniass should not ceasel until the finished j product comes to rest; at the bottom of thefinal'wash box. Furthermore, it is any opi'njion that a mechanicalagitation of: the mass is not necessary'as'ajcentrally locatedwaterspray produces a better cleansing effect and results in a' more completebreak up of the mass thereby producing a better separation of theundesirable substances from the good All of "the undesirable snbstanc'esfound. in

the general mass-0f sand; a rethe'solu'bles and the-lighter particles.The general theory is accepted, that the solublesgo'into solution andthe lighter particles are pa rtiallyi sils pended, both of whichare=definitely separated from the main mass by going over thespill-way'with the waste Wash Water; This invention provides for'theexpansion of the 0 mass following its entry into the Wash box anddispenses Wltl1 undesirable solubles which oftentimes produceobjectiona'blecrystal deposits in sand 'rendering it useless conh-.

merc'ia lly as building or filtermaterial-L 4 Itavv-ill be readilynoted'that allot-the above 'ha-s been carefully studied and'a proper 0breaks up the'mass as; it-entersthecenter of the receptacle and ampleexpansion room' is providedby the conical shape which facili tates ai-constant vupward outlet for the "lighter particles that havetoberem'oved and a quiek M definite separation is assured by thefactfthat the entire-360 degrees of the top ofrthmcone forms thespillvvayc Theautomatica'lly controlledoutlettforthe i i g treated-sandis simple in design and very v v a sensitive, yet positive. Thedumpi ngopera mtion isasconstant a's theieeding {other depending uponhovvsteadily it is'ifed.

commercial grade (as regards 'size) ofisand desired :can be produced bygauging 'the sand level in thi's -unit, which is accomplished byarranging 'itheiwveights" on the-countez baleg iance 'contreli a 1Objectionable solublesoften found in sandp $5 -Whentre'atedby'a-vvashingprocess are-meet ly in solution by the time theyreacl'i the' final wash: box and a good portion this ;dense moisturefollows through with the finished product; VVhile' thefinished product my be termed reasonably cleangan'df free from silt, etc.,='iit :is;stilllheavily laden with the "dense moisturecontainingltheobjectionableselubles; The development of a rinsing device in thisinvention definitely dIlSPBIlS6S Wil3h7the 5gb I objectionablesoluble sby, the method of displacement: This 7 being acoom'plished by applyingagspray of cleanvvater uponthe streat ed sands asthey are abouttoleave'thecsec ondar-y rdewateringzunit therebydisplacing 3-5 the densesoluble ladenhmoisturezygathered through: the "process j of washing"with clear clean moisture--under pressure.

.Wherein' like reference characters indicate" corresp'ending partsfthroughoutithe "several views: P 'Fi'gurejl isa front elevation offacom'plete sandlt'reating apparatus constructed in ac; '95 cordancev-withthe present invention.' 5

Figure -'2 is" an end 'elevation of the appa' ratus; V the frame Istructure therefor being removed; r A 1 Figur e is an enlarged verticalcross seo- P 7 9 rating and grading unit 'A, a primary de- .centralwater spray pipe being illustrated in Now, having particular crosssection.

Figure 5 is an enlarged fragmentary-section through one of the slidingjoints between said unit and the apparatus frame.

Figure 6 is a top plan view of the secondary dewatering and rinsingunit.

Figure 7 is a detail longitudinal section therethrough takensubstantially upon line 7-7 of Figure 6.

Figure 8 is a fragmentary longitudinal sec-.

tion on an enlarged scale through the rinsing water spray pipe. Figure 9is a vertical transverse section through said secondary dewatering andrinsing unit taken substantially upon line 99 of Figure 6. r [.Figu're10 is a perspective of one of the pivotal flights or blades of theconveying unit arranged within said secondarydewaterer and rinser forremoving-the completely treated: sand therefrom. I i Figure 11 is afragmentary section through one of the-side wallsof said-secondarydewatering and rinsing-unit illustrating the manner of movably arrangingthe conveyor unit therein. Figure 12isan enlarged side elevationofthedrivingunit for the conveyor and said secondary. dewatering andrinsing unit, 1

Figure 13 is a similar view of the.driving unit between the powermechanism andthe suction pumps means for said secondary dewaterer andrinser.

Figure 14 isa fragmentary plan view of the double intake for the dualsuction pump apparatus. i

Figure 15' is a fragmentary vertical section through the primarydewaterer locateddirectly beneath the separating and grading unit. 1

Figure 16 is a plan view of an air nozzle located directly beneath thescreen floor of the primary dewaterer' in order to prevent sealing ofthe sands upon the screen in'said primary dewaterer.

reference'to the drawings; 5 designates generally the superstructure orsupporting frame for the'entire v apparatus audit is of course to beunderstood that I do not desireto be limited to any partlcular characterof's'uperstructure frame, but

' departures may-be made from thatishow'n in scope of the invention.

The apparatus includes generally, asepathe drawings without affectingthe spirit and waterer=located directly therebeneath designated B, and acombined secondary de waterer and rinser C. Said separating and gradingunit consists of a conical receptacle 6 having constructed, cat-itsupper, largerfand outer wall which is clearly illustrated in Figure 3.The bottom wall or floor of this spillway is inclined throughout itsentire length terminating at its low point into a waste materialdischarge 8. This unit is mounted for vertical movement in a true V61tical plane, the arrangement illustrated consisting of'verticallyextending bars 99 associated at opposed points with the said spillway 7said bars interconnected at their upper ends by a cross member 10. Thesebars 9-9 are freely slidable through collars 1111 which are rigidlyassociated with the superstructure 5. (See Figures 1 and 5.) Above thesaid unit there is arranged a water supply pipe 12 having a suitablecontrol valve 1.3, this service extends downwardly through the center ofthe conicalreceptacle 6 and communicates with water spray pipe 14, thelower end of which is provided with a tapered cutoff valve tip 15adapted for engagement with j the upper inside end of a sleeve 16located mally maintaining thereceptacle outlet 4 closed. This valve tip15 is provided with fluid orifices 17 as is also thelower section of thewater spray pipe 14 which pipe orifices are designated the referencecharacter 18. Said elevating means forthe unit can be of any desiredstructure, that illustrated consist- .ing of a lever 19 pivoted to thetop of the superstructure 5 and being connected at its inner end to thecross member 10 of the said bars 9-9 by suitable links 20. Attached tothe outer opposite end of thislever 19 is a rod or cable 21 adapted forreceiving at its lower endany desired number of weights 22. Obviously byincreasing or diminishing the pull upon the outer end of the lever 19will regulate the height of the materialwithin the receptacle by reasonof the fact that the outlet of the receptacle will not move away fromthevalve tip 15 until the weight 'of the sand overcomes said weight onlever 19, while the 1 height of the material in the receptacle controlsthe extent of the separating and grading process as it isobvious thatwhen the level of the material within the receptacle is low the extentof the separation and grading is low and vice-versa. The sand isreceived within the receptacle 6 from any desirable means such asillustrated in Figure 1, and designated by the reference character D.The material entering the center of the receptacle is immediately brokenup and a continuous agitation of the mass is caused by the waterdischarging through the orifices in the central spray pipe 14 as well asfrom the orifices in the valve tip 15,-the silt, loam and the rejectedfiner sands Y and having communication with a suitable source ofcompressed alr'which is manually pipe 28.

areearriednpwardly and-outwardly and flow over into the spillway 7, theheavieruseful products; obvious 1 Arrangeddireetl y beneath thereceptacle 6 is the eonical shaped receptacle 2310f *theprimarydewat'erer B. Within this'receptaele "23 and upon which the sandfalls-"is a screen O o'tpredeterm'inedmeshg said receptacle 23 passingthrouglr the reeeptaclea is being provided with an inclined 'disehamgepipe 25 at a point :just above the screen 24, The reeeptaele 23 bene'aththe screen-24s has communication-with a dual sueti'on pump' 26,

15 suction pipes 27*]27 extend from said pump rect= communication withthe receptacle 2'3 and are 'connected to aypipe- 28' 'th-at has (hwhichis clearly illustrated in Figure 2; Z'The pipes27-27 are equippedwi-thsuitable check valves 27'--'-27,"whilewithin the li'ne' -between thesecheck -val ves and the "receptacle 23 is a cut-off valve" 29'to'ce1itro1 the extraetion-of the moisture from the sand while gpassin gover thescreen24 The-pump ijsoperativ'ely connected'with a suita'blepower ta'ke-ofi' unit] 30, of any desired type or design. It is obvi-011s that a" considerable amount of t-he m'oisture-ifrom the s anddischarging "frorn'the 1 separating :and gI-adin g'" unit- A will ibe-'.ex-

tracted'- whi-*l'e =passing -over' the screen-J24- in the receptacle 23by a'ction of the. i'super imposed suction communication-with the dualpumping unit Located direetlyibe neathth e screen 24 entire; primarydewaterer receptacle 23 i is a series or: air blast pipes 31 s 1 thebevel edges of said slots 35 to prevent "transverse 1 movement of therollerswithin said slots.v f Extendi r-igthrougli centra l' openv in'gsoif transversely associatedfi rollers at 'opposite endsofthe trough 32are shafts 40-40 I 70 iwhichshafts support an elongatedbpen rectangularframe ll consi stingof parallel side bars 42+42' int/erconn'ected attheir opposite ends =by eross tmembe'rs- Between these cross members43-43 and inequall y v s aeed relation, the inner races of said side a"bars42 -4c2areformed or-equipped witli stop lirgs 44. Looselypivotedbe'tween these side bars 4'2- 42 -directly adjacent the lugs*Mandc, s.

the end members 43-43mm conveyor blades 3 I or 'flights 45 fornied attheirupper edges and at opposite ends'w'ith vertically extending itongues .46 for engagement with said-lugs and "SZLldYCT-OSSpniemberstOjPIGVQ-Ilt the movement 2 V T df-the bl'adesor flights out oftheirperpen-s5 d-icular planebwhen said fframe- 4T is moving f towardthe'outlet end 'of theitrough Fur- -tl'iermore, the lower edgesjof these{blades or v -flights terminate in spaced rlati'ohwith' 'reso as not tointerferewith the sand'filterthat builds up upon the bottomwa'll of thetrough T following the 'initia-l inj ection of the treated sand thereinffrom {the-discharge [pipe 25 of JB, which outlet pip'e 25' is l'oca-tedsubstan- ":tially upon the *long itudinal- "center line 1 of 'thetrough' 32fat a point slightly forward of *the forward stopfl positionof thefirear end having their outlet openings at the topsides'imemberrggj oft-1 glonggfl flifr 41 7 Th ""10 or automaticallycontrolled to break 'a possible seal of the sands upon "the screen 24thereby maintaining a constant'opening for the waters topass throughinto the suction The combined secondary dewaterer and rinsing unit C islocated beneath and forwardly of the primary dewaterer' B, said combinedunit consisting of a horizontally arranged sand receiving trough 32, thecentral bottom of which is formed by a somewhat triangularly shapedwater chamber 33, the

the top wall [of the water chamber defined by wire mesh screen '34 andlocated slightly below the bottom surface of the trough 32 so that asand filter will build up between the screen and the level of theremaining plate bottom which is rigidly attached to the opposite ends ofthe side walls of. the trough 32 Close to the upper edges of the sidewalls of the trough 32 aretransversely registering and longitudinallyextending slots 35, the edges of which are beveled as at 36 in Figure11, while the outer ends of these slots are en- 7 larged and rounded asat 37 so as to enable rollers 38 to be arranged within the slots, these,rollers being formed at their peripheries with V-shaped grooves39forreceiving :movementof the fnai'ne"4S1 {in a-dir'ection to- "Wardthe outl'et; en'd of' th'e' trough will cause the blades-or-fiights 45to; engage the "sand =-above *the' filter upon the screen 345 for]scrapcarried intda discharge *c hute" i7 "at the left e'ndof the trough32."-'('See1Figure 11:) Ob- I :-vio'usly,- the manner in which theblades or fl-i'ghts are pivoted williallowthem to swing a P toithedotted-diner ositibni-na' 'Figure, :7 when the frame ismovin'gitowardthe opposite end of the troughwsovasn'ot to carry the sand 7 tow-81rdthe end of thetrough opposedto-the discharge-end thereof; a r q vsuitablef'means may be" providedfor "11 continuouslyreciprocatingthe-bladeor fiight carrying frame 41 duringsthe operation:o'f the machine, but preferably-thismeans consists of-a large gear48associated withithc i ;.power take-off unit.30- anduzhaving at itsidew'ater'e'r and :ri'nser is' in communication 7139 "spect to thebottomwall ofthe trough 3290 I theireceptacle "23" of said "primarydewatere'r "95 ing theflsametherefrom; from whence it is'ios with thesuctionjpump 26 through the Vm'e- 'dium of a suction pipe 5 andobviously all of the remaining free flowing fluids at this point will beextracted while passing over the screen 34 in the-trough 32 by action ofthe superimposed suction in communication with the dual pumping'unit26.V

7 Located beneath the screen 134 of said water chamber there isrotatably mounted through a packed opening in one of the side walls ofthe chamber 33 a compressed air conductor 55 the inner end of whichextends vertically as at 56 and is provided at the upper end thereofwith a transverse pipe 57 capped at its opposite ends and provided atits top with air orifices 58. Attached to this pipe outwardly of saidchamber 83 is anarm 59 attached at its upper end to the adjacent end ofthe remote roller shaft 40 of said frame 41 by a pitman 60. Obviouslytherefore during the reciprocation of the frame within the trough 32 thepipe 57 will be swung in an arc beneath the screen 34. The pipe 55 hascommunication with any suitable source of air pressure operable eithermanually or automat-ically to break a possible seal of the sands uponthescreen 34 thereby maintaining a. con- "st'ant opening for the fluidsto pass through into the suction pipe 5%. Furthermore, the interior ofthe trough 32 may be cleaned at any time by reason of the location ofthe transverse water pipe 62 upon the floor of the trough 32 and rat theend thereof remote from the discharge end of said trough. Directly abovethe floor of the trough said pipe 62 is provided with 'a longitudinalwater slot 63 said pipe having communication with any source of watersupply through the medium of a pipe 64 having a control valve 65therein. Also communicating with this water pipe 6 l'is a transverselyextended rinsing spray pipe 66 superimposed upon the trough 32 near thedischarge end thereof, that portion of therpipe66 within the confines ofthe trough being provided with small water discharge orifices 67, thispipe 66 being also equipped with a control valve 68. This de- I-claim asnew anddesire to secure by Letters Patent is 1. In a sand treatingapparatus, havinga rigid frame and a sand receptacle havingan outlet atits bottomand vertically movable with respect to the frame, a stationarywater pipe rigidly fixed to the frame and located centrally within thereceptacle and having a tapered head upon its lower end-for closing thereceptacle outlet when the receptacle is elevated, said water pipehaving outlet openings in the receptacle,an overflow spillway at theupper end of the receptacle and selective pressure mechanism formaintaining the receptacle outlet closed'until the material within thereceptacle overbalances said mecha- 2. Ina sand treating apparatus, avertically movable pan receptacle having a discharge outlet, an overflowspillway at the upper end of said receptacle, a stationary water pipeextending into said receptacle axially .with respect to said dischargeoutlet, a valve head on the lower end of said-water pipe for seatingengagement with'the walls of said discharge outlet, the lower end ofsaid water pipe and said valve head having-"water discharge orificestherein, and weight means acting upon said receptacle to normally holdthe samefwith thefvalveheat in seating engagementwith the walls ofsaiddischarge outlet.

; v i In testimony whereofI aflix my signature.

' OAKLEY W. .HOSKING.

treatingapparatus that is welladapted for all of the purposes heretoforedesignated,

7 and even though I have hereinshown and described the invention asconsisting of certain 7 therefrom without affecting-the spirit and scopeof the appended claims.- I

Having thus described the invention, what

